SCH3U September Week 4

1

400

Rank the following in order of LARGEST to SMALLEST atomic radii:   Ti, Ra, Ca 

Ra >  Ca >  Ti

2

300

Which structure shows Iron (II) Oxide?

A

3

300

Which is the most reactive non-metal and WHY?

F because it has the smallest atomic radius (aside from He - which is an inert gas). 

500

Rank the following in order of LEAST reactive to MOST reactive:   Si,   Cl,  S,   Ne,   F 

Ne  <  Si  <  S  <  Cl   < F

4

400

Draw the Lewis Structure for SO₃ ^2-  and classify it as polar or non-polar. If it is polar, draw the vectors and label the δ+ and δ- end  

polar 

5

400

Draw the Lewis Structure for acetate ion and classify it as polar or non-polar. If it is polar, draw the vectors and label the δ+ and δ- end  

500

Rank these structures for CO₃ ^2-  from most stable to least stable 

C, B, A